Enable the -Wundef warning for clang

webrtc/voice_engine/test/channel_transport/udp_socket_wrapper_unittest.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 // Tests for the UdpSocketWrapper interface.
 // This will test the UdpSocket implementations on various platforms.
 // Note that this test is using a real SocketManager, which starts up
 // an extra worker thread, making the testing more complex than it
 // should be.
 // This is because on Posix, the CloseBlocking function waits for the
 // ReadyForDeletion function to be called, which has to be called after
 // CloseBlocking, and thus has to be called from another thread.
 // The manager is the one actually doing the deleting.
 // This is done differently in the Winsock2 code, but that code
 // will also hang if the destructor is called directly.
 
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
+#include "webrtc/test/gmock.h"
+#include "webrtc/test/gtest.h"
 #include "webrtc/voice_engine/test/channel_transport/udp_socket_manager_wrapper.h"
 #include "webrtc/voice_engine/test/channel_transport/udp_socket_wrapper.h"
 
 using ::testing::_;
 using ::testing::Return;
 
 namespace webrtc {
 namespace test {
 
 class MockSocketManager : public UdpSocketManager {
@@ skipping 23 matching lines @@
                                      NULL,  // CallbackObj
                                      NULL,  // IncomingSocketCallback
                                      false,  // ipV6Enable
                                      false);  // disableGQOS
   socket->CloseBlocking();
   UdpSocketManager::Return();
 }
 
 }  // namespace test
 }  // namespace webrtc